Frank



(No Model.)

F, W. MIX.

PADLOCK.

No. 344,669. Patented June 29, 1886.

limitan tirarse y Farnn'r rtree.

FRANKNV. MIX, CF N EvV BRITAIN, CONNECTICUT, ASSIGNCB TO THE CORBINCABINET LOCKCCMPANY, CF SAME PLACE.

PADLOCK.

SPECIFICATION forming part of Letters Patent No. 344,669, dated June 29,1886.

Application filed June 27, 1885. Serial No. 9,941

To all whom it may concern.-

Be it known that I, FRANK WV. MIX, a citizen of the United States,residing at New Britain, in the county of `Hartford and State ofConnecticut, have made certain new and useful Improvements in Padlocks,of which the following is a specilication.

My invention relates to that class ot padlocks that have a slidingshackle, which shackle is also free to swing after its short end hasbeen withdrawn from the case.

'In the accompanying drawings, Figure l is a front elevation of mypadlock with one side of the case removed. Fig. 2 is a transversesection of said lock on line x x of Fig. 1, and Fig. 3 is a like view online y y of Fig. l.

A designates the lock -case, having crossplates a b. Between theseplates is the springcatch B. The shackle C, which both slides andswings, has its longest member passed through holes in one end of thecase, and in one end of the cross-plate u. The shorter member oi theshackle C also enters a hole in the end of the case when the device islocked; but when the shackle is unlocked and slides outward this memberclears the end of the case, as shown in Fig. 1, so that the shackle mayswing in its bearings. Notches or recesses c are formed in oppositesides of the shackle, within which notches the leaves of the springcatchB engage to lock the shackle within the case. The catch is released by akey which takes its bearings in holes in the plates a b, and at the endof the case which is opposite the shackle. (See Figs. 2 and 3.)

The parts thus far specifically described are all old and not claimed asmy invention. It is also old in this connection to forman annular groovein the shackle at a point just within the case, and to throw the shackleoutward by means of a sheet-metal spring, one end of which is fixed tothe case, while the other end engages the groove of said shackle. Inthis construction the outward movement of the shackle is limited by thefree end of the spring coming in contact with the end ot' the case.

A prior patent shows a padlock of another class-wiz., one whose shackles1ides,but does not swing, in which a lug on the long arm of the shacklelies in a slot in the case and serves (No model.)

to limit the outward movement of the shackle,

which was forced out by a spiral spring placed e ofthe case and shackle,and is so shaped that one edge tits closely to the reduced neck thatforms the bottom of the groove d. lt is stationary within the case, andfor convenience of so securing it I 'form lugsff on two of its oppositeedges, which lugs drop into mortises made in the sides of the case. Theconstruction is not only inexpensive, but it enables me to first insertthe shackle C, and then put in the stop-plate, which, by engagement withthe lower or inner shoulder of the groove, limits the outward movementof the shackle, as shown in Fig. l. By this construction the stop-plateforms no part ofthe spring, and the stop is formed wholly independentofthe end of the case. Furthermore, the annular groove and the edge ofthe lstop-plate can be better fitted to each other than can thesheet-metal spring and groove in the shackle of one of the padlocksherein disclaimed, because the swinging movement ot' thespringnecessarily moves it to and from the bottom of the groove in theshackle, and requires a loose fit.

The shackle is forced outward by means of the spiral spring g, placedunder its heel at one ofthe lower corners of the case. The upper end ofthis spring is held in place by means of a short tenon on the heel ofthe shackle. At the bottom or lower end of the case is a plate, h,having a round key-hole, 7a, which is concentric with the wingedkey-hole in the end of the case, (sce Fig. 3,)and with the end of thecase serves to form a bearing for that end of the key to turn in. Theend of this plate which is nearest the spring is cut out, as shown inFig. 3, so as to serve as a spring-guard to prevent the lower end of thespring from work ing sidewise out of place toward the key-hole. Theplate h is secured to the end of the case by means of lugs n n, bentdown therefrom, and

IOO

extending through the bottom end of the case.

The spring is prevented from Working out of place in the oppositedirection by means'of the wall of the case; but, if desired, the plate hmay be extended sufciently to make itsurround the end of the spring.

`If desired, other ordinary form of locking mechanism may be substitutedfor the springcatchlB, which locks the shackle Within the case.

I claim as my invention- .1. In a padlock of the class shown and delscribed, the combination of a suitable case,

the shackle mounted therein so 'as toslid'e outwardly, and then swing orturn on its longer member, said shackle lalso having an annular groove,a stop-plate, one, edge of which is itted to and engages withl saidannular groove y and the plate h, extending to one side to formaspiring-guard, and having a round key-hole' concentric with the VWingedkey-hole in the case, substantially as described, and for the purposespecified.`

FRANK W. MIX.

Witnesses:

S. C. DUNHAM, CHARLES F. CORBIN.,

